| 摘要 |
PROBLEM TO BE SOLVED: To prevent idling of a blower fan at low costs without increasing the number of components.SOLUTION: A blower fan 1 is attached to a rotation shaft 103 formed by a round bar included in a motor 100 and includes: a boss part 10 coupled to the rotation shaft 103; and a blade part 20. The boss part 10 is formed by a material having higher strength than a material forming the blade part 20. The boss part 10 is integrally molded with the blade part 20. |
